USB. Very good for surround sound. Comes in other colours. Comfortable. Has separate volume controls for different channels. The microphone is easy to adjust and it stays where you put it. For music, it is just average. Frequency Response (Front, Surround, Center): 20 — 20KHz. 4 neodymium drivers on each earcup. No noise cancelling, though the earcups are quite fat and will tend to isolate you. Chris Voss gives it three thumbs up. Website no longer gives product into. From the various photographs I have seen, it looks fairly sturdy.